The historical frequency of banking crises is quite similar in high- and middle-to-low income countries, with quantitative and qualitative parallels in both the run-ups and the aftermath. We establish these regularities using a unique dataset spanning from Denmark’s financial panic during the Napoleonic War to the ongoing global financial crisis sparked by subprime mortgage defaults in the United States. Banking crises dramatically weaken fiscal positions in both groups, with government revenues invariably contracting, and fiscal expenditures often expanding sharply. Three years after a financial crisis central government debt increased, on average, by about 86 percent.